CDX-GT48UM/GT480U/GT480US/GT484US 4 5 6 7 8 9 MAIN BOARD (1/3) 11 12 13 14 15 23 (Page 19) 22 21 18 17 16 15 14 12 A 13 2 10 28 3 27 2 ⢠See page 26 for IC Block Diagrams. ⢠See page 27 for IC Pin Function Description. 26 1 ⢠See page 17 for Waveforms. 25 SCHEMATIC DIAGRAM â MAIN Section (3/3) â 24 4-6. MAIN BOARD (3/3) R717 0 C701 100 10V CN701 28P 2.6 C519 1 3.1 SA_IN SA_DA 44 NCO 43 NCO 42 RC_IN0 41 KEY_IN0 40 KEY_IN1 39 SA_IN 38 VSM 37 QUALITY 36 AVSS 35 RC_IN1 34 AVRH 33 AVCC 32 ATT 31 ACC_IN TEL_ATT 23 24 25 26 27 28 29 30 3.3 3.3 3 R441 10k 0.5% C428 1000p RC0 3.3 R438 100 0 R437 100 0.5 R436 100 KEY1 R439 10k 0.5% R440 10k 0.5% 3.2 RC1 R435 100 3.3 3.3 R434 100k 0 C424 ATT ACC CDM_ON CD_ON SYSRST 39 0.9 C517 0.1 C436 L503 10uH 0.01 SYNC_OUT IC502 IC B/D C523 100 10V DC/DC CONVERTER CONTROL R523 1k R524 1k R525 1k C435 0.1 C434 0.01 MC_TX Q MC_RX Cx GND 41 R466 0 XFLASH CLR 40 R519 1k C515 470p UART/CLK Rx/Cx VCC A 5 B 2.6 6 3.3 3.3 7 1.4 8 R513 10k 4 0 R464 100 JL034 R463 100 JL033 R462 100 JL032 R461 100 JL031 R460 100 JL036 JL030 JL029 J 21 21 CN401 8P JL035 R459 100 1 RESET 2 CLK_IN 3 UART_CLK 4 Ucom-TX(CD-RX) 5 Ucom-RX(CD-TX) 6 3.3V 7 FLASH_W 8 GND FLASH PROGRAMMING MAIN BOARD (2/3) (Page 20) KEY0 3.3 R430 100k R468 100k LCD_CE 3.3 1 R431 100k 3.3 0.01 C421 R442 2.2k 3.3 0.01 CDM_ON 22 0 21 0 20 R428 100k 19 R433 100k CD_ON 18 0 SYS_RST 17 3.3 BUS_ON 16 R432 100k USB_OVER 15 3.3 I2C_SCK 14 3.3 13 3.1 I2C_SIO 12 R406 100k USB_ON 11 R409 100 UNISCK 10 3.3 UNISO 9 R427 2.2k UNISI 8 I2C_SCK C 7 0 VSS 6 1.8 5 0.2 0.01 45 VSS LCD_DATA C427 1000p MD2 46 KEY_ACK0 LCD_CLK R443 2.2k C426 1000p MD1 KEY_ACK1 R444 2.2k 3.2 C425 1000p MD0 0 3.1 RESET 3.1 AREA_SEL2 3.3 0 0 AREA_SEL1 0 WAKE_UP AREA_SEL0 47 3.2 C423 XFLASH R447 100k R448 100k R452 100k R454 100k MC_TX MC_RX WAKE_UP R455 100 3.3 MC_RX 3.3 3.3 MC_TX 0 0 3.3 3.3 3.3 3.3 0 CLK_IN Z_MUTE R456 10k CLK_IN 48 ) IC502 TC7WH123FU(TE12R) R515 10k 3 DD_ON LCD_CE EXTATT_XEN 4 CAM001 CDX-GT48UM/GT480U/GT480US/GT484US 49 3 I2C_SIO 0.1 50 LCD_SO 2 3.3 0 LCD_SCK 1 R426 2.2k C514 330 10V D511 MA2J1110GLS0 ( C422 D512 MA2J1110GLS0 51 2 Q504,505 USB OVER CURRENT DETECT C518 220 10V 52 NCO DD_ON 53 Z_MUTE SYNC_OUT 54 VCC 99 100 55 TEST ZAPPIN VSS BEEP 98 NCO 97 DIAG NCO AMP_STB 96 VBUS_ON SIRCS 56 C420 33p GND 95 0 Vadj NCO 3 R414 100k Vout 1.3 CONT 5.2 VIN 3.3 C513 0.1 OSC_OUT 94 D401 LRB751V-40T1G 5.7 93 R503 12k 2 I R514 330k OSC_IN 57 CLK_IN C508 1500p 92 58 IC401 MB90F882 PF-G-105E1 NOSE_SW C507 1 VSS 59 SYSTEM CONTROL R411 100k 4 R521 3.3k 0.5% VCC 91 SIRCS 3 R520 10k 0.5% Q505 RT1N141C-TP-1 GND FB 2 R408 100k 90 60 IC401 C516 0.1 1 R505 1k 5 5.7 DRV COMP D504 MA24D5000BS0 12.7 VCC 5 ISNS 6 SS 7 RC 8 C509 15p D502 MA2J1110GLS0 4 1.7 3.3 1 D505 MAZ8056GMLS0 12.7 2 C521 470p 1 R510 100k 3 0 R407 2.2k DD_ON USB POWER CONTROL SWITCH Q504 RT1N141C-TP-1 C505 470p 3.3 2 D510 MAZ8039GLLS0 0.1 R504 68k 1 R467 0 SYNC_OUT D R516 100k 0.5% 1 C503 C504 Q501 RT1N141C-TP-1 USB POWER CONTROL C502 0 H 120 16V R501 56k 14.4 14.4 IC501 TPS40200DRG4 DC/DC CONVERTER 3.9 IC501 R512 0 0.5 G 14.4 3 C506 470p IC B/D 6 R518 56k 0.5% 1 D 0 IC B/D IC503 D 0.7 2 G 1.3 0 D 14.4 3 D 5 D IC503 NJM2387ADL3(TE2) R517 22k 0.5% R511 1.5k G 4 S L502 68uH 5.7 6 D 5.7 5 D D503 MAZ8120GMLS0 14.4 14.4 14.4 4 S 14.4 0.1 C501 R502 56k F R508 0 F501 2A 5.7 Q503 RSQ035P03TR SWITCHING REGULATOR Q502 TPC6108(T5RSONYF,M USB POWER SWITCH 3.2 NCO 61 VCC 1.2 R410 470 NCO 89 62 X_IN X401 7.92MHz 88 63 3.3 1.9 NCO 64 X_OUT 3.3 NCO 87 65 RE_IN1 XFLASH NCO 86 66 1.6 C416 0.01 85 67 1.2 0 DAVN 68 R424 10k X402 32.768kHz 3.3 BU_CHECK 84 69 C419 27p C413 1000p 83 70 C418 0.01 D701 LBAT54ALT1G Q701 RT1N141C-TP-1 FLASH PROGRAMMING BUFFER E 2.8 R405 220k R710 100k L501 47uH SA_CLK VBUS_ON FB707 71 RE_IN0 BU_IN C707 0.01 72 0.1 1 C703 10 16V 73 3.3 NCO FB705 TU_ATTIN 74 100 2 NCO 82 75 R423 3 81 76 FM(50k) AM(9k) -1 -2 S402 FREQUENCY SELECT RE1 4 NCO 77 RE0 BU_3.3V SYS_RST R465 0 0 5 R714 0 78 SA_OUT BU_GND VBUS_ON R709 100 79 35 FM(200k) AM(10k) R445 100k NCO 6 80 100 7 NCO Z_MUTE 34 Q401 RT1N141C-TP-1 FLASH PROGRAMMING BUFFER R446 100k C429 0.01 NCO VBUS_ON R712 0 R421 10k R422 8 0.01 9 0 C417 10 Z-MUTE Q402 RT1P141C-TP-1 FLASH PROGRAMMING BUFFER MC_RX R707 100 TU_ATT D D_GND Z/Y_CHECK R706 100 SA_CLK 11 MC_TX NCO 12 TXD(MC_BUS) R402 100k 3.3 NCO RXD(MC_BUS) 3.3 FB702 NOSE_SW 13 R713 100k C706 0.01 C705 0.01 RDS_ON AUDIO_8.5V C702 22 16V NSMASK 14 0 NCO 15 USB_GND CD_ON NCO 16 0 0.1 17 DR_6V CDM_ON R704 R420 100 CD_ON DR_GND CD MECHANISM UNIT (MG-101Y) (2/2) R101 1k R419 100k 18 3.1 0 19 33 ILLUMI_SEL A_ATT CDM_ON FB301 NCO 20 FLASH_EN0 21 AU_LCH 32 C201 560p FLASH_EN1 AU_GND C101 560p COL_SW 22 0 AU_RCH R703 100k R201 1k R417 100k 23 NCO 24 A_GND 30 BU_IN B-OUT_SEL 25 A_3.3V 0 CYRIL_SEL EJECT_OK R701 0 26 3.3 27 SYSRST WAKE_UP ZAPPIN BU_CHECK OPEN_REQ FB701 2.2uH R415 100k C 28 29 UART/CLK B WAKE_UP C704 0.01